<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>综合设置边框</title>
		<!-- boredr: 宽度 样式 颜色 -->
		<style type="text/css">
			h2{
				border-top: 3px dashed red;
				border-right: 10px double gold;
				border-bottom: 5px double green;
				border-left: 10px solid blue;
			}
		</style>
	</head>
	<body>
		<h2>sssssssssss</h2>
	</body>
</html>
